BIRDS OF NORTH AND MIDDLE AMERICA. 609 
Trochilus (Selosphorus) scintilla Gouup, Proc. Zool. Soc. Lond., 1850, 162 (Volcan 
de Chiriquf, 9,000 ft., Panamé; coll. J. Gould). 
Selasphorus scintilla Goutp, Mon. Troch., pt. iii, May, 1852; vol. iii, 1861, pl. 
138; Introd. Troch., oct. ed., 1861, 89.—CaBanis, Journ. fiir Orn., 1863, 165 
(Costa Rica).—Mutsant and VerrEaux, Classif. Troch., 1866, 89; Hist. 
Nat. Ois.-Mouch., ii, livr. 3, 1876, pl. 27; iv, livr. 2, 1877, 104, pl. 109 (Costa 
Rica; Verdgua).—Satvin, Proc. Zool. Soc. Lond., 1867, 155 (Voledn de 
Chiriqui); 1870, 209 (Volcén de Chiriquf); Cat. Birds Brit. Mus., xvi, 1892, 
395 (Volcdin de Irazu, Barranca, and Tucurriqui, Costa Rica; Chiriqui).— 
Lawrence, Ann. Lyc. N. Y., ix, 1868, 123 (Barranca, Cervantes, and Las 
Cruces de la Candelaria, Costa Rica).—Frantzius, Journ. fiir Orn., 1869, 315 
(Costa Rica).—Boucarp, Proc. Zool. Soc. Lond., 1878, 70 (Cartago and 
Voleén de Irazt, 10,000 ft., Costa Rica); The Hum. Bird, ii, 1892, 73 (Vera- 
gua); Gen. Hum. Birds, ii, 1895, 8 (Cartago; Chiriquf).—Etiior, Classif. and 
Synop. Troch., 1879, 111.—Ze.ep6n, Cat. Aves de Costa Rica, 1882, 20; 
Anal. Mus. Nac. Costa Rica, i, 1887, 121.—Sanvin and Gopman, Biol. Centr.- 
Am., Aves, ii, 1892, 353.—Satvaporzr and Festa, Boll. Mus. Zool., etc., 
Torino, xiv, 1899, no. 339, p. 7 (Chiriquf).—Banes, Proc. New Engl. Zool. 
Club, iii, 1902, 31 (Boquete, Panam4, 4,000 ft.) —Carrixrr, Ann. Carnegie 
Mus., vi, 1910, 548 (highlands of Costa Rica, above 3,500 ft.; habits). 
Slelasphorus] scintilla Capanis and Harve, Mus. Hein., iii, 1860, 56 (Veragua).— 
Riveway, Rep. U. S. Nat. Mus. for 1890 (1891), 340 (diagnosis, etc.).— 
Hartenrt, Das Tierreich, Troch., 1900, 206. 
[Selasphorus] scintilla RutcHENBAcH, Aufz. der Colibr., 1854, 13; Troch. Enum., 
1855, 10, pl. 853, figs. 5024-5026.—BonaparteE, Rev. et Mag. de Zool., 1854, 
257.—ScLaTeR and Sanvin, Nom. Av. Neotr., 1873, 84.—Mutsant, Ann. 
Soc. Linn. Lyon, n. s., xxii, 1876, 227.,—Suarre, Hand-list, ii, 1900, 141. 
[Selasphorus rufus] var. scintilla Barrp, BreweEr, and Ripeway, Hist. N. Am. 
Birds, ii, 1874, 459. : 
Selasphorus (rufus, var.?) scintilla Barrp, Brewer, and Ripeway, Hist. N. Am. 
Birds, ii, 1874, 459, footnote. 
[Trochilus] scintitla Gray, Hand-list, i, 1869, 144, no. 1864. 
(2) Selasphorus underwoodi Satvin, Bull. Brit. Orn. Club, vi, no. xliv, April 30, 
1897, p. xxxviii (Volc4n de Irazi, Costa Rica; coll. Salvin and Godman); 
Ibis, 1897, 441 (reprint).—Carriker, Ann. Carnegie Mus., vi, 1910, 549 
(Costa Rica; crit.). 
(?) [Selasphorus] underwoodi SHarre, Hand-list, ii, 1900, 141. 
SELASPHORUS ALLENI Henshaw. 
ALLEN'S« HUMMING BIRD. 
Similar to 8. rufus, but smaller and with rectrices much narrower 
(the outermost much less than 2.5 wide in adult male, not more than 
2.5 wide in adult female); adult male with upper parts (except upper 
tail-coverts and tail) metallic bronze-green (instead of cinnamon- 
rufous), and rectrices next to middle pair tapering gradually, without 
notch or sinuation near tip. 
Adult male-—Above metallic bronze-green, the feathers of rump 
with basal portion (mostly concealed) deep cinnamon-rufous; upper 
@ Named for Charles A. Allen, of Nicasio, California, who first called attention to the 
specific distinctness of this species from S. rufus. 
81255°—Bull. 50—11——89 
